I confess that I haven't! I do have some Bitcoin that I've received for various reasons, in an old Coinbase account if I can still find the username and password.

I should explain that I'm a theoretical computer scientist, and that I often struggle to log in to the websites for my kids' schools. If I were savvier with actual computers, maybe I would've bought or even mined some Bitcoin back in 2010 when I first learned about it! Oh well :-D